RECORDING APPARATUS
20180147864 ยท 2018-05-31
Inventors
- Hiroshi UE (Matsumoto-shi, JP)
- Koji MIGITA (Matsumoto-shi, JP)
- Satoshi IWAYA (Ina-shi, JP)
- Yasushi Akatsuka (Asahi-Mura, JP)
- Hiroshi SHIOHARA (Shiojiri-shi, JP)
Cpc classification
B65H31/02
PERFORMING OPERATIONS; TRANSPORTING
B65H2405/11151
PERFORMING OPERATIONS; TRANSPORTING
B65H2220/01
PERFORMING OPERATIONS; TRANSPORTING
B65H2403/411
PERFORMING OPERATIONS; TRANSPORTING
B65H2220/11
PERFORMING OPERATIONS; TRANSPORTING
B65H2220/01
PERFORMING OPERATIONS; TRANSPORTING
B65H2301/4212
PERFORMING OPERATIONS; TRANSPORTING
B65H2220/02
PERFORMING OPERATIONS; TRANSPORTING
B65H2220/02
PERFORMING OPERATIONS; TRANSPORTING
B65H2220/11
PERFORMING OPERATIONS; TRANSPORTING
B41J13/0036
PERFORMING OPERATIONS; TRANSPORTING
B65H43/00
PERFORMING OPERATIONS; TRANSPORTING
B65H2405/11163
PERFORMING OPERATIONS; TRANSPORTING
B65H31/20
PERFORMING OPERATIONS; TRANSPORTING
International classification
B41J13/00
PERFORMING OPERATIONS; TRANSPORTING
Abstract
Provided are a recording apparatus, when a medium is discharged from a recording apparatus main body, which can achieve both of appropriate mounting of a medium in which the leading edge thereof is curled on a medium receiving tray, and reduction of damage to a medium when mediums of different sizes are mixed on the medium receiving tray.
Claims
1. A recording apparatus comprising: a recording unit that records on a medium; a discharge unit that discharges the medium recorded by the recording unit; and a medium receiving tray that receives the medium discharged by the discharge unit, and wherein the medium receiving tray includes a pair of projecting sections provided on both side sections in a medium width direction, which is a direction intersecting a medium discharge direction, and a deformation restricting section which supports the medium between the pair of projecting sections and restricts a deformation of the medium supported by the pair of projecting sections.
2. The recording apparatus according to the claim 1, wherein, in a case where a first size medium is discharged by the discharge unit, both end sides of the first size medium in the medium width direction are supported by the pair of projecting sections, and wherein, in a case where a second size medium, in which a size in the medium width direction thereof is small compared with that of the first size medium, is discharged by the discharge unit, both end sides of the second size medium in the medium width direction are supported between the pair of projecting sections.
3. The recording apparatus according to the claim 2, wherein the deformation restricting section includes a first supporting surface, which is located at a center between the pair of projecting sections in the medium width direction, and a second supporting surface, which extends from the projecting sections toward the first supporting surface.
4. The recording apparatus according to claim 1, wherein the medium receiving tray includes a first receiving section that receives a medium, and a second receiving section that includes the pair of projecting sections and receives the medium at a position closer to the discharge unit than the first receiving section, and wherein the second receiving section is disposed symmetrically with respect to a center in the medium width direction, and outer side edges thereof in the medium width direction extend from an upstream side toward a downstream side in a medium discharge direction and toward the center.
5. The recording apparatus according to claim 4, wherein the first receiving section has a shape in which an upward inclination angle thereof becomes steep from an upstream side toward a downstream side in a medium discharge direction.
6. The recording apparatus according to claim 5, wherein the second receiving section is provided to be switchable between a first state and a second state which projects from the first receiving section compared with the first state.
7. The recording apparatus according to claim 6, wherein the second receiving section projects from the first receiving section in the first state.
8. The recording apparatus according to claim 6, further comprising: a switching unit that switches states of the second receiving section; and a control unit that controls the switching unit, wherein the control unit controls the switching unit based on driver information.
9. The recording apparatus according to claim 6, wherein a recessed section is formed on an end section, of the medium receiving tray, on a downstream side in a medium discharge direction, and an operating section for switching the states of the second receiving section is disposed on the recessed section.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
[0032] The invention will be described with reference to the accompanying drawings, wherein like numbers reference like elements.
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DESCRIPTION OF EXEMPLARY EMBODIMENTS
First Embodiment
[0046] An outline of a recording apparatus according to an embodiment of the invention will be described. In the embodiment, an ink jet printer 1 (hereinafter simply referred to as printer 1) is exemplified as an example of the recording apparatus.
[0047]
[0048] In X-Y-Z coordinate system illustrated in each view, the X-axis direction illustrates the width direction of the recording apparatus and a moving direction of a recording head, the Y-axis direction illustrates the depth direction of the recording apparatus, and the Z-axis direction illustrates the height direction of the apparatus. In each view, the +X-axis direction side is the left side of the apparatus, the X-axis direction side is the right side of the apparatus, the +Y-axis direction side is the front side of the apparatus, the Y-axis direction side is the back side of the apparatus, the +Z-axis direction side is the upper side of the apparatus, and the Z-axis direction side is the lower side of the apparatus. A direction that paper is being transported in a printer is referred to as downstream and the opposite direction thereof is referred to as upstream.
Overall Configuration of the Printer
[0049] Hereinafter, the overall configuration of the printer 1 will be described mainly with reference to
[0050] The printer 1 (
[0051] The outer side of the apparatus main body 2 includes ink container housing cases 4a, 4b that house ink containers (not illustrated) for containing ink supplied to the recording head 7.
[0052] A reference numeral 10 in the front surface of the apparatus denotes an operating panel 10 including operating buttons for performing various reading setting/reading execution and a display section for displaying contents of the reading setting.
[0053] The recording head 7 is disposed on a carriage 8 configured to be movable in the X-axis direction in
Paper Transport Path of the Printer
[0054] A paper transport path P in the printer 1 will be described mainly with reference to
[0055] The paper on the uppermost of the plurality of pieces of paper (paper bundle G), set in the paper feeding cassette 6, is picked up by a first feed roller 12 (also referred to as pick-up roller) from the paper feeding cassette 6, is nipped by a transport driving roller 13, which is rotationally driven by a driving source (not illustrated) to transport the paper, and a separating roller 14, which is driven and rotated by the transport driving roller 13, and then, is transported to the downstream side of the transport path.
[0056] The transport path P is formed along a roller surface of a transport driving roller 18a in a bent manner. The paper transported to the back side (Y direction) of the apparatus temporarily from the paper feeding cassette 6 is transported to the front side (+Y direction) of the apparatus by the transport driving roller 18a and a transport driving roller 18b.
[0057] A pair of transport rollers 15 is provided on the downstream side of the transport driving roller 18b and the upstream side (the back side of the apparatus, Y direction) of the recording head 7, and the paper is transported under the recording head 7 by the pair of transport rollers 15.
[0058] The paper transported to the front side of the apparatus passes through the lower side of the recording head 7 while being supported by a supporting member 16 provided to face the recording head 7, and recording is performed on the paper by ink ejected from the recording head 7.
[0059] A pair of first discharge rollers 17a and a pair of second discharge rollers 17b, as a discharge unit 17 that discharges the paper recorded by the recording head 7, is provided on the downstream side (the front side of the apparatus, +Y direction) of the recording head 7. A paper discharge tray 5, as a medium receiving tray for receiving the paper discharged by the discharge unit 17, is provided on the front side of the apparatus of the apparatus main body 2.
[0060] The paper after recording by the recording head 7 is nipped by the discharge unit 17 and discharged to the paper discharge tray 5. Next, the paper discharge tray 5 for receiving the paper discharged by the discharge unit 17 will further be described.
Paper Discharge Tray
Projecting Section and Deformation Restricting Section
[0061] The paper discharge tray 5 (
[0062] The paper discharge tray 5 (
[0063] The deformation restricting section 21 (
[0064] In the embodiment, the paper discharge tray 5 includes a first receiving section 25 that receives paper, the projecting section 20 (projecting section 20a and projecting section 20b), and a second receiving section 26 that receives paper at a higher position than the first receiving section 25. The second receiving section 26 is disposed symmetrically with respect to a center section C (
[0065] When the projecting section 20 is provided on the paper discharge tray 5, the leading edge of paper discharged from the discharge unit 17 can be received at a position closer to the discharge unit 17 than a mounting surface of the paper discharge tray 5 without the projecting section 20. Accordingly, a curled paper can appropriately be mounted on the paper discharge tray 5.
[0066] On the other hand, although a paper discharge tray 50 in related art illustrated in
[0067] As described above, both of appropriate mounting of paper in which the leading edge thereof tends to curl, and suppression or reduction of a possible damage to a medium when mediums of different sizes are mixed can be achieved by the paper discharge tray 5, including the projecting section 20a and the projecting section 20b, and the deformation restricting section 21, which is provided therebetween. The deformation restricting section 21 is configured by the first supporting surface 22 and the second supporting surfaces 23a, 23b to reduce the level difference between the projecting section 20a and the projecting section 20b. Accordingly, bending or scratching of paper by the projecting section 20a and the projecting section 20b can be suppressed or avoided.
[0068] Further, the paper discharge tray 5 includes the projecting section 20, and the second receiving section 26, which receives paper at higher position than the first receiving section 25, is symmetrically disposed with respect to the center section C in the paper width direction and is formed such that the outer side edges 27a, 27b of the second receiving section extend toward the center section C, that is, in a tapered shape toward the +Y-axis direction. Accordingly, it is possible to reduce a contact area of paper toward the paper discharge direction (+Y-axis direction) in the paper discharge tray 5, and then reduce the contact resistance between the discharged paper and the paper discharge tray 5.
[0069] As a result, it is possible to reduce a possibility that paper is caught on the paper discharge tray 5, and discharge the paper smoothly.
[0070] In
[0071] In other words, on the A3 size paper as the first size medium P1 used in the printer 1, the size in the paper width direction is larger than the disposition interval between the projecting section 20a and the projecting section 20b. In the A4 size paper as the second size medium P2, the size in the paper width direction is smaller than the disposition interval between the projecting section 20a and the projecting section 20b.
[0072] That is, in a case where the A3 size paper (first size medium P1) is discharged by the discharge unit 17, both end sides of the A3 size paper in the paper width direction are supported by the projecting section 20a and the projecting section 20b. In a case where the A4 size paper (second size medium P2), in which the size in the paper width direction thereof is small compared with that of the A3 size paper is discharged by the discharge unit 17, both end sides in the paper width direction in the A4 size paper are supported by the deformation restricting section 21 between the projecting section 20a and the projecting section 20b.
[0073] Such relationship between the disposition interval between the projecting section 20a and the projecting section 20b, and the first size medium P1 (A3 size) and the second size medium P2 (A4 size) used in the printer 1 is set. Accordingly, when mediums are mixed such that the first size medium P1 (A3 size) is previously stacked on the paper discharge tray 5 and the second size medium P2 (A4 size) is stacked on the previously stacked medium, it is possible to suppress or reduce a possible damage to the first size medium P1 (A3 size) due to the weight of the second size medium P2 (A4 size).
First Receiving Section
[0074] The first receiving section 25 in the paper discharge tray 5, as illustrated in
[0075] The first receiving section 25, more specifically, is formed to include three-step inclination of an area A1 close to the discharge unit 17, an area A2 which is provided on the downstream side (+Y-axis direction side) in the paper discharge direction of the area A1 and is formed with a steeper angle than the area A1, and an area A3 which is provided on the downstream side in the paper discharge direction of the area A2 and is formed with a further steeper angle than the area A2 (refer to
[0076] Since the first receiving section 25 has a shape in which an upward inclination angle thereof becomes steep toward the paper discharge direction (+Y-axis direction), a position of the end section on the lower side in the inclined direction of paper, mounted on the paper discharge tray 5, can easily be aligned to the upstream side in the paper discharge direction (Y-axis direction side) using the weight of the paper.
Second Receiving Section
[0077] The second receiving section 26 is configured to be switchable between the first state, as illustrated in
[0078] The second receiving section 26 is switchable between the first state (upper view in
[0079] As in the embodiment, in a case where liquid (ink) is ejected from the upper side of paper and the paper is discharged in the face up state, in which the liquid-ejected surface faces upward, when the paper is, for example, grain-short in which paper grain intersects with the paper transport direction, the curl at the leading edge of the paper is likely to occur. Such paper is set as a paper P3 (
[0080] In a case where the paper P3, which tends to curl at the leading edge thereof, is received on the paper discharge tray 5, when the second receiving section 26 is set to the second state (lower views in
[0081] In the embodiment, the A3 size paper (first size medium P1) is configured such that the direction of the flowing grain of the paper is along the short side of the paper, and the long side of the paper is transported in a direction along the paper transport direction. That is, the A3 size paper is transported in the grain-short. The A3 size paper, which tends to curl due to the transport in the grain-short, can be received on the projecting section 20 at a position closer to the discharge unit 17 than the mounting surface of the paper discharge tray 5, and appropriately mounted on the tray.
[0082] On the other hand, in a case where paper in which the curl at the leading edge of the paper is unlikely to occur (for example, paper transported in the grain-long in which the paper grain is along the paper transport direction) is received on the paper discharge tray 5, when the second receiving section 26 is set to the first state (the upper view in
[0083] In the paper discharge tray 5 according to the embodiment, the second receiving section 26 projects from the first receiving section 25 in the first state (the upper view in
[0084] In the embodiment, since the interval between the projecting section 20a and the projecting section 20b is wider than the width size of the second size medium P2 (A4 size in the embodiment), in a case where the paper of a size having equal to or less than the second size medium P2 (A4 size in the embodiment) curls, the leading edge of the paper cannot be landed on the projecting section 20a and the projecting section 20b. However, in the curl of paper of relatively small size, which is the A4 size, or equal to or less than the size, the growth rate of the curl associated with the paper transport is slower than that of the first size medium P1 (A3 size in the embodiment). Accordingly, even at the lower position (position away from the discharge unit 17) than the projecting section 20a and the projecting section 20b that prevents the curl of the first size medium P1, it is possible to suppress the curl at the leading edge of the paper and land the paper. Since the second receiving section 26 projects from the first receiving section 25 in the first state, as illustrated in the upper view in
Switching Unit of Second Receiving Section
[0085] Next, the switching unit 30 that switches between the first state and the second state of the second receiving section 26 will be described with reference to
[0086] The switching unit 30 (
[0087]
[0088] When the first pinion gear 33 rotates, the second pinion gear 34 that meshes with the lower gear 33b rotates in the counter-clockwise direction in
[0089] The second rack member 35 and the third rack member 36 are respectively provided with a push-up section 35a and a push-up section 36a at the end sections opposite to sides engaged with the second pinion gear 34.
[0090] As in
[0091] The switching unit 30 is provided on the rear surface (surface of the Z-axis direction side) of the second receiving section 26.
[0092] A recessed section 28 is formed on the end section, of the paper discharge tray 5, on the downstream side in the paper discharge direction (
Second Embodiment
[0093] In the embodiment, the other example of the printer according to the invention will be described based on
[0094] In the first embodiment, the switching unit 30 that switches the states of the second receiving section 26 on the paper discharge tray 5 is manually operated so as to be switched. However, a printer 40 in the second embodiment is configured to automatically perform a switching of states of a second receiving section 26 according to a paper size and type.
[0095] The printer 40, as illustrated in
[0096] The switching unit 41, as illustrated in
[0097] Similar to the first embodiment, as in
[0098] The pinion gear 44 (
[0099] The driving motor 47 is configured such that a motor shaft (not illustrated) can rotate forward and reverse. Accordingly, the pinion gear 44 can be rotated in the clockwise direction and the counter-clockwise direction in
[0100] As illustrated in
[0101] The printer 40 can also be configured to acquire the information on paper through a driver installed in a computer (not illustrated) connected to the printer.
[0102] In the printer 40 configured as described above, the switching of the states of the second receiving section 26 can automatically be performed by the control unit 42 based on the driver information related to the paper size, type, and the like.
[0103] The invention is not limited to the embodiments described above. Various modifications of the invention are possible within the scope of the invention described in aspects and it goes without saying that the modifications are also included within the scope of the invention.
[0104] The entire disclosure of Japanese Patent Application No.: 2016-229115, filed Nov. 25, 2016 is expressly incorporated by reference herein.